1984 Kawasaki KX250 Specifications and Specs
Specifications and workshop reference information for the 1984 Kawasaki KX250, including engine, chassis, service data and setup details.
Note: Specs are compiled from factory data, manuals and owner feedback. Bikes vary — if yours is different, jump into the forum and share it.
General Specifications
| Engine Type | 2-stroke, single cylinder, piston reed valve, liquid-cooled |
| Displacement | 249 cc |
| Bore x Stroke | 70.0 x 64.9 mm |
| Compression Ratio | 9.1 : 1 |
| Carburetor | Mikuni VM38SS | Replacement Options |
| Ignition | CDI system |
| Ignition Timing | 22° BTDC @ 6,000 rpm |
| Spark Plug | NGK B8EG / BR8EG |
| Reed Valve | Piston reed valve induction |
| Port Timing | Scavenging 62° BBDC / Exhaust 91° BBDC |
| Lubrication | Petrol mix (30:1) |
| Starting System | Primary kick |
Transmission
| Transmission Type | 5-speed constant mesh |
| Clutch Type | Wet, multi-disc |
| Gear Ratios | 1st 2.133 / 2nd 1.764 / 3rd 1.388 / 4th 1.136 / 5th 1.000 |
| Primary Reduction | 2.750 (55/20) |
| Final Drive | Chain drive |
| Final Ratio | 3.571 (50/14) |
| Overall Drive Ratio | 9.821 (Top) |
| Transmission Oil | SE class SAE 10W30 or 10W40 (700 mL) |
Dimensions
| Overall Length | 2175 mm |
| Overall Width | 830 mm |
| Overall Height | 1245 mm |
| Wheelbase | 1465 mm |
| Ground Clearance | 350 mm |
| Dry Weight | 94 kg |
| Fuel Capacity | 8.0 L |
| Bearing Sizes |
Bearing Finder |
Chassis
| Frame Type | Tubular, single down tube |
| Caster Angle | 45° |
| Trail | 118 mm |
Suspension
| Front Suspension | Telescopic fork (air fork) | Fork Oil Levels |
| Rear Suspension | Swing arm |
| Front Wheel Travel | 300 mm |
| Rear Wheel Travel | 315 mm |
Brakes
| Front Brake | Disc brake (210 mm) |
| Rear Brake | Internal expansion, leading-trailing drum brake (130 x 28 mm) |
Wheels & Tyres
250cc Other Specs
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